The word "boobook" is commonly used to refer to a nocturnal bird species known as the Australian boobook owl. However, there are several other synonyms that can be used to describe this bird, including the mopoke, Morepork, and Tasmanian spotted owl. The mopoke is a term commonly used in Australia and New Zealand to describe the boobook owl due to the sound of its call, which mimics the phrase "mo-poke". The Morepork, another name for the bird, is derived from the sound of its call, which is said to sound like the phrase "more-pork". The Tasmanian spotted owl, on the other hand, is a subspecies of the boobook owl found exclusively in Tasmania.